Which One of the Following Is True of the 2008

Which one of the following is true of the 2008 presidential election?

A) Barack Obama accepted public financing for his campaign, one of the few times a presidential candidate has done so.
B) The actual presidential campaign lasted only three months.
C) According to the government, total spending on the campaign reached more than $1.8 billion.
D) After years of increases, campaign costs decreased slightly in the 2008 presidential election.
E) Total campaign spending topped out at $500 million for both the McCain and Obama presidential campaigns.